Last updated: March 17, 2025
December in Zagreb, Croatia offers a tantalizing mix of winter's chill and vibrant holiday spirit. With maximum temperatures reaching a mild 19°C (66°F) and dipping to a brisk -6°C (21°F), the average hovers around a cool 3°C (38°F). Rain is not uncommon, as 86 mm (3.4 in) of precipitation graces the city over approximately 10 days, leading to an atmospheric humidity of 88%. Whether you're exploring festive markets or enjoying the city's rich history, December's weather adds a unique charm to Zagreb's winter landscape.
In December, Zagreb, Croatia, experiences a notable transition as winter settles in, with temperatures reflecting the chill of the season. The month typically begins with a minimum of around -6°C (21°F), while the average hovers just above freezing at 3°C (38°F), creating a crisp atmosphere that's perfect for cozying up in cafes or exploring the city's festive holiday markets. As the month progresses, daytime highs can reach a moderate 19°C (66°F), offering a brief reprieve from the cold that can entice visitors outdoors. This pattern reflects the gradual cooling trend seen throughout the preceding months, culminating in December's chilly embrace, making it a unique time to enjoy Zagreb's winter charm amidst a backdrop of beautiful architecture dusted with frost.
As December arrives in Zagreb, the city experiences a shift in its weather patterns, with precipitation amounts averaging 86 mm (3.4 in) over approximately 10 days. This higher rainfall mirrors a trend established over the preceding months, where late autumn transitions into winter typically bring increased moisture. Notably, December's precipitation is slightly lower than November's 89 mm, suggesting a gradual tapering off before the colder months fully set in. Despite this decrease, the persistent 10 rainy days align with the usual patterns of the wetter fall season, maintaining a cozy ambiance as winter takes hold, perfect for enjoying the festive charm of the city.
December in Zagreb, Croatia, sees a notable resurgence in humidity, with levels reaching 88%. This increase follows a gradual decline throughout the warmer months, where humidity dips to its annual low of 51% in August. As autumn settles in, humidity levels begin to rise again, peaking at 87% in November before slightly decreasing in December. Overall, the trend reflects a seasonal rhythm, with Zagreb experiencing its most humid months during winter, contrasting sharply with the drier summer season. This ebb and flow of humidity play a significant role in shaping the city's climate, creating a crisp, chill that marks the transition from fall to winter.
In December, Zagreb experiences a low UV Index of 2, indicating that sun exposure poses minimal risk, with a burn time of about 45 minutes for fair-skinned individuals. This marks a return to safer levels after a summer filled with very high UV Index values peaking at 9 in June and July. As the year transitions into winter, the UV levels decrease significantly, showcasing a clear trend of reduced sun intensity as seen in the preceding months. Comparatively, December's conditions resemble those of January, suggesting that colder months consistently bring lower UV risks. For more detailed information, visit the Zagreb UV Index.
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Zagreb, Croatia, experiences a delightful shift in daylight as December brings a modest 204 hours of sunshine. While December may not match the sun-kissed abundance of the summer months, it does showcase a significant increase from the dreary November, which only saw 191 hours. This upward trend hints at a gradual transition from the colder, darker months, leading into a more vibrant winter landscape. With the chill of December in the air, the city's festive spirit shines through, making each sunlit hour all the more precious. This increase, when compared to the striking peaks of 426 hours in July and 406 hours in June, offers a hopeful glimpse of brighter days ahead, reminding us that even in winter's grasp, sunshine persists.
In December, the likelihood of sunny weather in Zagreb, Croatia, drops to 28%, mirroring a trend seen in the colder months. Following November's already low 21%, the city transitions into winter with limited sunshine. This decline contrasts sharply with the warmer months, where sunshine probabilities peak, particularly in March (58%) and June (57%). As temperatures fall, residents and visitors must brace for a more overcast atmosphere, marking December as one of the month’s with the least chance of clear skies. With holiday festivities mixed with rugged weather, the season offers a unique charm, even if the sun is not a frequent guest.
In Zagreb, Croatia, December marks the transition into winter, with daylight duration dwindling to just 8 hours. As the year progresses, daylight begins at a modest 9 hours in January, gradually increasing until it peaks in the vibrant days of June and July, where the city basks in 15 hours of sunlight. Following this summer high, daylight hours begin their gentle descent, tapering down through August's 14 hours and September's 12 hours before plummeting back to 10 hours in October and returning to 9 hours in November. This noticeable ebb and flow in daylight highlights the stark contrast between the brighter summer months and the darker winter days, creating a rhythmic cycle that punctuates each season in Zagreb.
As December blankets Zagreb, Croatia, the city experiences a gentle whisper of wind, with an average speed of 1.8 m/s (4 mph). This marks a subtle decline from the slightly breezier months of earlier autumn, where winds generally hovered around 2.1 m/s. It's interesting to note that December's winds are among the calmest of the year, reminiscent of the tranquil lull characterizing the winter season. While the winds in Zagreb remain predominantly mild throughout the year, December arrives with a sense of serene stillness, inviting residents and visitors alike to enjoy the picturesque charm of the city as it transitions into the new year.
The weather in Zagreb changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Zagreb and find detailed weather information for every month.
December and January both feature chilly temperatures, but January tends to be colder overall. In December, the average high reaches 19°C (66°F), while January’s maximum is slightly lower at 16°C (62°F). The minimum temperatures drop more significantly in January, with lows of -12°C (11°F) compared to December's -6°C (21°F). Precipitation decreases in January, totaling 39 mm (1.5 in) over 8 days, a notable reduction from December’s 86 mm (3.4 in) across 10 days. Additionally, humidity is slightly higher in January at 89% compared to 88% in December. For more detailed weather insights, check out Zagreb weather in January.
December and February present distinct weather patterns, reflecting the transitional nature of winter. In December, temperatures range from a chilly minimum of -6°C (21°F) to a milder maximum of 19°C (66°F), with an average of 3°C (38°F). This month sees 86 mm (3.4 in) of precipitation over 10 days, and the humidity is relatively high at 88%. In contrast, February tends to be colder, with minimum temperatures dropping to -10°C (14°F) and an average of 4°C (40°F), but a slightly warmer maximum of 21°C (69°F). Precipitation decreases to 66 mm (2.6 in) over 9 days, and humidity is lower at 83%. For more details on weather conditions, check out Zagreb weather in February.
December and March experience a noticeable shift in weather patterns. In December, temperatures range from a chilling minimum of -6°C (21°F) to a moderate maximum of 19°C (66°F), with an average of 3°C (38°F). The month sees significant precipitation of 86 mm (3.4 in) over approximately 10 days, accompanied by high humidity at 88%. In contrast, March presents a broader temperature spectrum, with lows plunging to -15°C (6°F) and highs reaching up to 23°C (74°F), resulting in a higher average of 7°C (46°F). Precipitation decreases to 52 mm (2.1 in) over 8 days, and humidity drops to 75%. For more detailed insights, visit Zagreb weather in March.
In December, temperatures can really dip, with minimums reaching -6°C (21°F) and an average temperature of 3°C (38°F), while maxima only reach up to 19°C (66°F). The month is characterized by high humidity at 88% and frequent precipitation, totaling 86 mm (3.4 inches) over about 10 days. In contrast, April brings a significant warming trend, with averages rising to 12°C (54°F) and maximums soaring up to 29°C (85°F), though it still experiences a frosty minimum of -6°C (21°F). Precipitation in April decreases to 68 mm (2.7 inches) over 9 days, accompanied by a lower humidity of 72%, creating a more comfortable atmosphere. For more detailed insights, check out Zagreb weather in April.
December and May present stark contrasts in weather conditions. In December, temperatures range from a chilly -6°C (21°F) at night to a mild 19°C (66°F) during the day, with an average of just 3°C (38°F). The month is quite humid, with 88% humidity and precipitation measured at 86 mm (3.4 in) over about 10 days. In contrast, May enjoys more temperate weather, with minimum temperatures starting at 3°C (37°F) and maxing out at a warm 31°C (89°F), leading to an average temperature of 16°C (62°F). Precipitation increases to 120 mm (4.7 in) spread over 17 days, but the humidity drops to a more comfortable 70%. For a deeper insight into the delightful spring weather, check out Zagreb weather in May.
December and June exhibit strikingly different weather patterns, with December characterized by cooler temperatures and higher humidity. In December, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 19°C (66°F), while average temperatures hover around 3°C (38°F). This month also sees significant precipitation, with 86 mm (3.4 in) falling over approximately 10 days and a high humidity level of 88%.
Conversely, June brings a warm and vibrant climate, with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 37°C (99°F) and an average of 22°C (72°F). Precipitation totals slightly increase to 96 mm (3.8 in) over about 12 days, but humidity decreases to a more comfortable 69%. For more information on the specific weather patterns of June, you can check Zagreb weather in June.
December and July present stark contrasts in weather. In December, temperatures can dip as low as -6°C (21°F), with average highs around 3°C (38°F), creating a chilly atmosphere complemented by high humidity at 88%. The month is often punctuated by precipitation, with about 86 mm (3.4 in) falling over roughly 10 days. In contrast, July offers a much warmer climate, with minimum temperatures of 10°C (50°F) and averages reaching 23°C (74°F), peaking at highs of 36°C (97°F). This month also experiences similar precipitation levels at 88 mm (3.5 in), albeit spread over one additional day. With humidity dropping to 64%, July feels significantly more comfortable. For more specific weather details, visit Zagreb weather in July.
When comparing the weather in December and August, the differences are striking. December typically sees cooler temperatures, with averages around 3°C (38°F) and a maximum of 19°C (66°F), while August boasts much warmer conditions, reaching up to 39°C (103°F) with an average of 23°C (74°F). In December, the humidity levels soar to 88%, creating a chilly, damp atmosphere, whereas August enjoys a much lower humidity of 51%, making the heat more bearable. Additionally, December experiences slightly more precipitation at 86 mm (3.4 in) over 10 days, compared to August's 74 mm (2.9 in) over the same duration. For more detailed information on August weather, you can check Zagreb weather in August.
When comparing the weather in December to September, the differences are quite pronounced. December typically sees colder temperatures, with a minimum of -6°C (21°F) and an average of 3°C (38°F), while September enjoys much milder conditions, with a minimum of 3°C (38°F) and an average of 18°C (64°F). Additionally, September can reach highs of up to 34°C (93°F), contrasting sharply with December's maximum of 19°C (66°F). Precipitation levels are somewhat similar, with December receiving 86 mm (3.4 in) and September slightly higher at 98 mm (3.9 in), both over approximately the same number of days. Furthermore, the humidity in December is significantly higher at 88%, compared to September's 62%. For a more detailed look at September weather, you can visit Zagreb weather in September.
In December, the weather becomes significantly cooler compared to October, with average temperatures ranging from a chilly -6°C (21°F) at night to a mild 19°C (66°F) during the day. The humidity increases to 88%, making the air feel more damp, while precipitation remains similar to October at 86 mm (3.4 in) but over more days—10 in total. In contrast, October enjoys a milder climate, with temperatures fluctuating between a minimum of 0°C (32°F) and a maximum of 27°C (80°F), along with slightly lower humidity at 81% and a bit less precipitation over 9 days. For a more detailed look, check out Zagreb weather in October.
When comparing the weather in December to that of November, we can see some notable differences. December experiences slightly cooler temperatures, with an average of 3°C (38°F) compared to November's average of 7°C (46°F). The minimum temperatures are also lower in December, dipping to -6°C (21°F) versus November's -5°C (24°F). Interestingly, both months have similar levels of precipitation, with December receiving 86 mm (3.4 in) and November 89 mm (3.5 in), and both see rainfall over the course of 10 days. Humidity remains fairly constant between the two months, with December at 88% and November at 87%. For a more detailed look at November weather, you can check out Zagreb weather in November.
As December unfolds in Zagreb, the city transitions into a cooler winter climate, contrasting sharply with the milder conditions of the preceding months. Temperatures drop significantly, averaging around 3°C and ranging from chilly mornings to occasional warmer afternoons. While the potential for snow begins to creep in, the month is characterized by a notable increase in precipitation, with 10 days expected to see rain, which contributes to a humid atmosphere with levels reaching 88%. This wintery shift marks a serene yet vibrant time in the city, where festive lights and seasonal cheer blend beautifully with the crisp weather. For a deeper understanding of how December fits into Zagreb's overall climate, visit Zagreb Climate.